National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Martinsburg IA

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm after midnight.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph.

    High: 86 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph becoming southeast after midnight.

    Low: 67 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 5 to 10 mph.

    High: 87 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 67. Chance of precipitation is 80%.

    Low: 67 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm after midnight.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 5 mph becoming southeast after midnight.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 5 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 67. Chance of precipitation is 80%.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 64.
Juneteenth
Sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Martinsburg IA
 41.18°N 92.27°W (Elev. 810 ft)
Last Update:
8:46 pm CDT Jun 14, 2025
Forecast Valid:
10pm CDT Jun 14, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation